Mikeclod From United States of America, joined Dec 2001, 272 posts, RR: 0
Reply 1, posted (12 years 5 months 4 weeks 1 day 15 hours ago) and read 32767 times:
Hello, one gallon of jet fuel should weigh 6.7 lbs. at a temperature of 60 degrees F. This varies of course, but it is the standard. In extreme temperatures, it will change up to or around 6.55 or 6.85 lbs, but this is measured at least twice daily and adjusted for. It is also taken for long or international flights.
Hope this helps, Mikeclod.
744rules From Belgium, joined Mar 2002, 408 posts, RR: 0
Reply 3, posted (12 years 5 months 4 weeks 1 day 14 hours ago) and read 32767 times:
mind there are us gallons and imperial gallons,
just to complicate things
1 us gallon = 0.83267 imp gallon
1 us gallon = 3.7853 liter
1 imp gallon = 4.5460 liter
these are volume values
for oil the this gives
1 us gallon = 7.5000 lbs
L-188 From United States of America, joined Jul 1999, 29895 posts, RR: 58
Reply 4, posted (12 years 5 months 4 weeks 1 day 14 hours ago) and read 32767 times:
The volume is going to vary based on the temperture of the fuel.
Anytime the tanks where dipped to determine the height of the fuel the temp was also noted.
It was impressive to see the difference in height if you took a barge shipment during the day, where the fuel was heated up as it passed through the pumps and the pipeline to the pumps. We had to wait a day for the static electriciy generated by the fuel moving through the pipeline to bleed off, that gave it usually and evening to cool down. There was sometimes a difference of a couple of feet in height of the fuel in the tank between those two mesurements.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
Broke From United States of America, joined Apr 2002, 1322 posts, RR: 3
Reply 5, posted (12 years 5 months 3 weeks 5 days 11 hours ago) and read 32767 times:
Here are the figures from my P&WA handbook. These figures are for a standard day; 59 degrees F (15 degrees C) and 29.96 inches of Mercury barometric pressure. These figures are in pounds per gallon instead of gallons per pound.
B747skipper From , joined Dec 1969, posts, RR:
Reply 13, posted (12 years 5 months 3 weeks 1 day 14 hours ago) and read 32767 times:
Well I was born and lived USA for 50 years... until PanAm bankruptcy force me to work overseas... many airlines use metric system (weights) overseas...
Atlas Air Cargo (USA) uses metric weights and fuel gages in kilos...
With metric, sure makes computations EASIER...
If you know the specific density of a liquid, much easier to compute weight (in kilos) of a liter of any liquid...
At 15 degrees Celsius...
Gasoline is .690 density (a liter of gas weighs .690 grams or .69 of a kilo)...
JP-4 is .78 density
Jet A-1 is .812 density (a liter of Jet A-1 weighs .812 grams)
Water ... is 1 (1 liter = 1 kilo), all the metric guys know that...
And a liter of mercury would be something like 13 kilos...
Now if you hate kilos so much, multiply these by 2.2048 to get lbs...
Not too many people NOT using metric nowadays... except USA...
A little anecdote here, in the mid 1980s I once landed in Gander, short of fuel and ideas to make it non-stop to Boston... Canada had just gone metric, but we forgot that fact, so we put our fuel order in "Imperial Gallons", but the gentleman said "we use liters now"...
So with a smile, I said "shall we call it "Imperial" Liters?..."
I dont think he enjoyed my joke that much... oh well...